Train Driver Certification Knowledge Test — Questions and Answers

Question 1: What is the proper response when a train approaches a broken rail detected by track geometry equipment?

Apply light braking and sound the horn as the train passes over the area
Stop the train before reaching the reported location and notify the dispatcher (Correct answer)
Continue at normal speed since the geometry system may be faulty
Reduce speed to 10 mph and proceed with caution

Correct answer: Stop the train before reaching the reported location and notify the dispatcher

A broken rail report requires stopping before the location and getting dispatcher authorization to proceed after track inspection.

Question 2: What does a 'derail' device on a track do?

Speeds up coupling
Measures axle load
Intentionally guides a moving car off the rails to prevent it entering a main line (Correct answer)
Cleans the rail head

Correct answer: Intentionally guides a moving car off the rails to prevent it entering a main line

A derail deliberately derails equipment to stop unauthorized movement onto a main track.

Question 3: What should a train driver do if the locomotive's event recorder malfunctions?

Shut down the locomotive and wait for a replacement
Continue normal operations until the next scheduled maintenance
Report the defect and comply with any operational restrictions required by company rules (Correct answer)
Reset the recorder and continue if it restores normal function

Correct answer: Report the defect and comply with any operational restrictions required by company rules

A malfunctioning event recorder must be reported, and the engineer must follow any operational restrictions the railroad's rules impose for this defect.

Question 4: What is the purpose of 'approach lighting' in railroad signal systems?

To illuminate a more restrictive signal only when a train is approaching, saving energy and reducing driver confusion (Correct answer)
To turn on platform lights as a passenger train arrives at a station
To signal the maintenance crew that a track inspection is needed
To activate crossing gate lights when a train is within one mile

Correct answer: To illuminate a more restrictive signal only when a train is approaching, saving energy and reducing driver confusion

Approach lighting activates a signal's lights only when a train occupies the approach block, reducing unnecessary illumination and improving signal conspicuity.

Question 5: As you prepare for your first trip of the day, you are a train driver sitting in your cab. A team member from the railway station repeatedly tries to talk to you while you are performing important safety checks regarding a problem that was brought up at the most recent staff meeting. What is your reaction?

You don't care to engage in small talk, so ask your coworker to exit the taxi.
Tell your coworker that you must not be distracted while you are focused on critical safety checks. Tell them to get in touch with you later and when you're not occupied with other critical chores. (Correct answer)
You can't recall what the problem was from the meeting, so ask your coworker as soon as possible. After all, you might have missed this crucial information.
Continue with your safety responsibilities and inform your coworker that you are not interested. You must pay attention to the current task.

Correct answer: Tell your coworker that you must not be distracted while you are focused on critical safety checks. Tell them to get in touch with you later and when you're not occupied with other critical chores.

Train drivers must prioritize safety and focus without distraction, especially during critical pre-departure safety checks. Interruptions can lead to errors or missed steps, compromising safety. Professional conduct dictates politely but firmly deferring non-urgent discussions until a more appropriate time, ensuring full attention remains on the immediate safety responsibilities.

Question 6: When should a train driver use sand on the rails?

To signal a stop to workers on the track
To improve adhesion during slippery conditions or wheel slip (Correct answer)
To clean debris from the track ahead
To cool the wheels during heavy braking

Correct answer: To improve adhesion during slippery conditions or wheel slip

Sand is applied to the rail ahead of the driving wheels to increase traction during wet, icy, or leaf-contaminated conditions.

Question 7: What does a locomotive's 'consist' refer to?

The operational schedule for the route
The combination of all locomotives and cars making up the train (Correct answer)
The cargo manifest for the trip
The number of crew members on board

Correct answer: The combination of all locomotives and cars making up the train

A consist refers to the complete makeup of a train, including all locomotive units and cars.

Question 8: What is the result of a 'skidded wheel' caused by excessive braking?

A wheel that stops rotating and slides on the rail, creating flat spots on the tread (Correct answer)
A wheel spinning freely due to a broken brake linkage
Insufficient brake pressure failing to engage the wheel effectively
Overheated wheel bearings from continuous braking contact

Correct answer: A wheel that stops rotating and slides on the rail, creating flat spots on the tread

When braking force exceeds wheel-rail adhesion, the wheel locks up and slides rather than rolls, abrading the wheel tread and creating flat spots that cause rough ride and wheel damage.

Question 9: Why does a fully loaded freight train require a longer stopping distance than an empty train traveling at the same speed?

Loaded trains generate excessive heat in brakes, reducing effectiveness
Greater mass produces greater momentum that brakes must overcome (Correct answer)
Wheel-to-rail friction decreases significantly under heavier loads
Air brake systems lose efficiency when supporting heavier cars

Correct answer: Greater mass produces greater momentum that brakes must overcome

A loaded train has greater mass, resulting in greater momentum (mass × velocity), which requires more braking force and distance to stop at the same speed.

Question 10: What is the correct response to a 'Stop and Examine' instruction from the signaller?

Continue at line speed
Speed up to clear the section
Stop the train and inspect for the reported problem before proceeding under instruction (Correct answer)
Reverse to the previous station

Correct answer: Stop the train and inspect for the reported problem before proceeding under instruction

A Stop and Examine requires the driver to halt and check the train or line for a reported defect before continuing as authorised.

Question 11: What is a "coupler" in a train?

The train's principal carriage
The vehicle's cockpit
A component that joins the railroad cars together (Correct answer)
A frame that holds the wheels

Correct answer: A component that joins the railroad cars together

A tank car is a specialized type of railway car designed to transport liquid and gaseous commodities. These cars are typically cylindrical and sealed, built to safely contain and transport various substances, including petroleum products, chemicals, and industrial gases, across long distances. Their design ensures secure containment of volatile or fluid cargo.

Question 12: What information must a train driver include when reporting a track defect to the dispatcher?

Only report if the defect caused a delay or incident
The train number and the time the defect was observed only
A verbal description without stopping or reducing speed
Exact location by milepost, nature of the defect, and whether the train passed over it safely (Correct answer)

Correct answer: Exact location by milepost, nature of the defect, and whether the train passed over it safely

A track defect report must include the precise location, the nature and severity of the defect, and the train's status after passing the location.

Question 13: During a controlled (planned) stop at a platform, the driver should aim to:

Stop with the cab beyond the platform end
Stop short to allow a longer dwell time
Brake as late and hard as possible
Stop within the correct stopping point for the train length (Correct answer)

Correct answer: Stop within the correct stopping point for the train length

Accurate stopping aligns all doors with the platform so passengers can board and alight safely.

Question 14: What is the standard charged brake pipe pressure for freight trains in the United States?

80 psi
70 psi
110 psi
90 psi (Correct answer)

Correct answer: 90 psi

The standard brake pipe pressure for US freight trains is 90 psi when fully charged and brakes are released; passenger trains typically use 110 psi.

Question 15: When a train is being prepared, why does the driver check the headlights and tail lights?

To ensure the train is visible and correctly identified from both ends (Correct answer)
To comply with passenger requests
To improve fuel economy
To charge the battery

Correct answer: To ensure the train is visible and correctly identified from both ends

Correct head and tail lights make the train visible and confirm it is complete, which is vital for safety.

Question 16: What does 'two-way end-of-train device' (EOT) communicate to the locomotive?

The speed of the last car in the consist
The weight distribution of the train from rear to front
Brake pipe pressure at the rear of the train and allows emergency brake activation from the rear (Correct answer)
Whether the rear car's handbrakes are engaged

Correct answer: Brake pipe pressure at the rear of the train and allows emergency brake activation from the rear

The two-way EOT monitors rear brake pipe pressure and can be commanded to dump air for emergency braking from the train's rear end.

Question 17: What should a driver do upon seeing a person on the track ahead?

Accelerate past quickly
Switch off the headlights
Sound the horn and apply the brake to stop if possible (Correct answer)
Continue without action

Correct answer: Sound the horn and apply the brake to stop if possible

The driver must sound a warning and brake to try to stop, as protecting life is the priority.

Question 18: A 'restricting' signal aspect (e.g., red over yellow) permits movement under what condition?

Only in reverse
Without any speed limit
At full line speed
At restricted speed prepared to stop short of obstructions (Correct answer)

Correct answer: At restricted speed prepared to stop short of obstructions

A restricting aspect allows movement at restricted speed, ready to stop short of any train, obstruction, or switch.

Question 19: What is a 'frog' in railroad trackwork?

A type of grade crossing surface material
A portable rerailing device used after derailments
The spring mechanism in a switch point
The V-shaped casting at a turnout that allows wheel flanges to cross the intersecting rail (Correct answer)

Correct answer: The V-shaped casting at a turnout that allows wheel flanges to cross the intersecting rail

A frog is the track component at a turnout where two rails cross, allowing wheels to pass through the intersection of the diverging routes.

Question 20: Where can a person cross a train or tram line on a railroad?

Any location on the track.
On the road at any level crossing.
Use the road crossing if there is a pedestrian facility nearby or if there are none within 20 meters. (Correct answer)

Correct answer: Use the road crossing if there is a pedestrian facility nearby or if there are none within 20 meters.

When boom gates are down and signals are flashing, it unequivocally means a train is approaching or present, and it is unsafe to cross. You must wait until the boom gates are fully raised and the warning lights have completely stopped flashing, indicating that the crossing is clear and safe to traverse. Attempting to cross before this is extremely hazardous and illegal, as it puts lives at risk.

Question 21: What does a train driver do when the cab signal shows a more restrictive indication than expected?

Immediately reduce speed to comply with the more restrictive indication (Correct answer)
Maintain speed and report the discrepancy at the next terminal
Stop the train and contact the signal department
Override the cab signal and rely on wayside signals only

Correct answer: Immediately reduce speed to comply with the more restrictive indication

The engineer must always comply with the most restrictive signal indication, reducing speed immediately when a more restrictive cab signal appears.

Question 22: What blood alcohol concentration (BAC) level is the FRA's legal limit for on-duty railroad employees?

0.00%
0.02%
0.04% (Correct answer)
0.08%

Correct answer: 0.04%

The FRA sets a BAC limit of 0.04% for safety-sensitive railroad employees, which is half the standard DUI limit.

Question 23: Which nation built the first high-speed tracks that allowed trains to travel at speeds of up to 150 mph (240 kph)?

Hong Kong
Japan (Correct answer)
South Korea
The United States

Correct answer: Japan

A coupler is a mechanical device located at the ends of railway rolling stock that forms a connection between two cars or between a locomotive and a car. Its primary function is to securely link the individual units of a train, allowing them to be pulled or pushed as a single coherent unit. This essential component ensures the train remains connected during operation.

Question 24: What is a 'block' in railroad signaling terminology?

A document authorizing a train to enter a specific segment
A defined section of track controlled by signals to maintain separation between trains (Correct answer)
A physical obstruction placed on the track to prevent movement
The distance a train travels during a stop signal approach

Correct answer: A defined section of track controlled by signals to maintain separation between trains

A block is a designated section of track between two signals used to control train spacing and prevent collisions.

Question 25: What does 'independent braking' control on a locomotive?

A backup system separate from the main air brake circuit
Only the locomotive's brakes, without affecting the rest of the train (Correct answer)
The brakes on trailing locomotive units only
Brakes on a single axle for precision stopping

Correct answer: Only the locomotive's brakes, without affecting the rest of the train

The independent brake applies or releases only the locomotive's brakes without changing brake pipe pressure or affecting brake application on any of the train's cars.

Question 26: A passenger reports a suspicious unattended bag on the train. The recommended response is to:

Do not touch it, report to control, and follow security procedures (Correct answer)
Open the bag to check the contents
Throw the bag off the train
Ignore it until the terminus

Correct answer: Do not touch it, report to control, and follow security procedures

Unattended items are treated as potential security threats, so they should not be disturbed and must be reported.

Question 27: What is the FRA's definition of a 'main track'?

A track with signals at both ends
A track designated for through-train movements on a railroad timetable or special order (Correct answer)
The track closest to the station platform
Any track used for revenue freight service

Correct answer: A track designated for through-train movements on a railroad timetable or special order

The FRA defines a main track as one designated and used for through-train movements as specified in the railroad's timetable or special instructions.

Question 28: In the event of a brake failure on a descending grade, what is the recommended first corrective action?

Release all brakes and allow the train to coast to level ground
Jump to a lower throttle notch to reduce speed
Apply dynamic braking to maximum and keep independent brakes applied (Correct answer)
Notify the dispatcher and await instructions before acting

Correct answer: Apply dynamic braking to maximum and keep independent brakes applied

Dynamic braking combined with independent brake application provides the maximum retardation force available when service brakes fail.

Question 29: What is the primary purpose of performing a set-and-release brake test before a train departs?

To confirm that brakes apply and release properly throughout the entire train (Correct answer)
To verify that the compressor can maintain adequate brake pipe pressure
To calibrate the automatic brake handle position indicators
To warm up brake shoes before high-speed operation

Correct answer: To confirm that brakes apply and release properly throughout the entire train

A set-and-release test confirms that all cars' brakes are properly connected to the brake pipe and can both apply and release, ensuring the braking system is functional from end to end.

Question 30: What does FRA's Positive Train Control (PTC) system primarily prevent?

Theft of freight from rail cars in transit
Equipment failures due to deferred maintenance
Train-to-train collisions, overspeed derailments, and unauthorized track entry (Correct answer)
Grade crossing accidents involving motor vehicles

Correct answer: Train-to-train collisions, overspeed derailments, and unauthorized track entry

PTC is designed to automatically stop or slow trains to prevent collisions, derailments from excessive speed, and movement into unauthorized zones.

Question 31: When may you start crossing at a railway level crossing if the boom gates are down and the signals are flashing?

If you are unable to observe an approaching train.
If it's safe to do so, go around the locked gate.
Only when the gate is closed and the lights are off. (Correct answer)

Correct answer: Only when the gate is closed and the lights are off.

Even if signals are not flashing, it's crucial to ensure the crossing is clear and safe before proceeding. This means not only checking for trains but also ensuring there's enough space on the other side of the tracks to fully clear the crossing without stopping on the tracks. This prevents being trapped on the tracks if traffic ahead stops, which is a dangerous situation.

Question 32: On a steep downhill gradient you notice your speed creeping above the permitted limit. You should:

Wait until the bottom of the gradient to brake
Coast and hope speed reduces naturally
Apply the brake progressively to regain and hold the correct speed (Correct answer)
Apply full power to maintain control

Correct answer: Apply the brake progressively to regain and hold the correct speed

Gravity increases speed on descents, so controlled braking keeps the train within limits and prevents runaway.

Question 33: What does a 'flagging' procedure protect against during track work?

Signal failures only
Animal crossings
Trains entering a work zone unexpectedly (Correct answer)
Electrical faults

Correct answer: Trains entering a work zone unexpectedly

Flagging warns approaching trains and prevents them from entering an occupied work zone.

Question 34: What is 'stringlining' in the context of train handling and braking?

Worn brake shoes leaving a line of metal deposits on the rail
The synchronized simultaneous release of brakes from a control signal
The sequential propagation of brake application from locomotive to the last car
A lateral force that can push cars off the rail on curves when slack bunches under braking (Correct answer)

Correct answer: A lateral force that can push cars off the rail on curves when slack bunches under braking

Stringlining occurs when a heavily braked long train's slack runs in on a curve, generating severe lateral forces that can push rail cars off the tracks.

Question 35: You notice your cab's windscreen is dirty as you wait to board the train at the station. You attempt to use the built-in wash system to clean the windows, but it doesn't seem to be working. How would you respond?

Avoid action. This kind of thing occurs frequently. Rain is expected to fall during the trip, so cleaning the screen is still necessary.
Inform the train attendant so that they can wash the windshield.
Obey the rules and your training. Inform the appropriate party(ies) right away so that, before you leave, the window can be cleaned and the built-in wash system may be fixed. (Correct answer)
Try cleaning it yourself with a dry rag outside the cab.

Correct answer: Obey the rules and your training. Inform the appropriate party(ies) right away so that, before you leave, the window can be cleaned and the built-in wash system may be fixed.

Clear visibility through the windscreen is critical for a train driver's safety. If the built-in wash system is faulty and the window is dirty, the train must not be operated until the issue is resolved. Informing the appropriate parties immediately ensures the problem is fixed and visibility is restored before departure, adhering to essential safety regulations.

Question 36: What does a temporary speed restriction (TSR) board indicate?

A scheduled stop
A permanent new speed limit
A reduced speed required over a defined stretch, often for track condition (Correct answer)
End of electrification

Correct answer: A reduced speed required over a defined stretch, often for track condition

A TSR imposes a lower speed over a section, typically due to track work or defects.

Question 37: What does a continuous, unexplained slow drop in brake pipe pressure indicate when no brake application is being made?

Dynamic braking engaging and consuming system air
Normal air compressor cycling between charges
A brake pipe leak or an open angle cock somewhere in the train (Correct answer)
A stuck equalizing reservoir valve requiring calibration

Correct answer: A brake pipe leak or an open angle cock somewhere in the train

Brake pipe pressure should remain stable when no applications are being made; a steady unexplained drop indicates a leak or an open angle cock that must be located before proceeding.

Question 38: What is 'brake lag' in a pneumatic train braking system?

The difference in braking force between front and rear cars
The recharge time required after an emergency application
Reduced effectiveness caused by worn or overheated brake shoes
The delay between the brake valve input and when brakes set throughout the train (Correct answer)

Correct answer: The delay between the brake valve input and when brakes set throughout the train

Brake lag is the propagation delay for a pressure change to travel through the full length of the brake pipe, causing brakes to set sequentially from front to rear.

Question 39: What is the purpose of 'graduated release' of train brakes?

Slowly releasing brakes to give passengers time to brace for acceleration
Releasing brakes in incremental steps to prevent sudden slack action and possible train separation (Correct answer)
Releasing only selected cars' brakes to redistribute braking force
A timed sequence for releasing hand brakes before departure

Correct answer: Releasing brakes in incremental steps to prevent sudden slack action and possible train separation

Graduated release allows brake pressure to be reduced in controlled increments, preventing the sudden slack run-out that could cause train separation or rough in-train forces.

Question 40: What is the first action a train driver should take when an obstruction is spotted on the track?

Reduce speed gradually and notify the dispatcher
Contact the conductor before taking action
Stop immediately using independent brakes only
Apply emergency brakes and sound the horn continuously (Correct answer)

Correct answer: Apply emergency brakes and sound the horn continuously

Upon spotting a track obstruction, the engineer must immediately apply emergency brakes and sound the horn to warn anyone near the obstruction.

Question 41: What is 'dynamic braking' on a diesel-electric locomotive?

Using traction motors as generators to create braking resistance (Correct answer)
Emergency braking using a secondary hydraulic system
A system that automatically adjusts brake pressure based on speed
Applying brakes rapidly during high-speed operations

Correct answer: Using traction motors as generators to create braking resistance

Dynamic braking converts traction motors into generators, dissipating kinetic energy as heat through resistor grids to slow the train without using friction brakes.

Question 42: Which factor has the greatest effect on increasing a train's stopping distance?

Train speed (Correct answer)
Number of cars in the consist
Grade of the track
Rail temperature

Correct answer: Train speed

Speed has the greatest effect because kinetic energy increases with the square of velocity, meaning doubling speed quadruples the energy that brakes must dissipate.

Question 43: At what air pressure is a train line considered fully charged in most US freight operations?

120 psi
90 psi (Correct answer)
45 psi
60 psi

Correct answer: 90 psi

A standard charged brake pipe in US freight operations is maintained at 90 psi.

Question 44: What is the significance of a 'joint bar' (angle bar) in railroad track?

It connects the ends of two rails at a joint to maintain alignment and transfer load (Correct answer)
It reinforces turnout frog points against wear
It is the mounting point for wayside signal equipment
It connects the rail to the tie plate at every fastener

Correct answer: It connects the ends of two rails at a joint to maintain alignment and transfer load

Joint bars are bolted to both sides of the rail web at rail ends, holding rails in alignment and transferring load across the joint.

Question 45: A driver notices an unusual repeated knocking from the bogies at speed. The best action is to:

Apply the emergency brake at once regardless of location
Increase speed to clear the affected section
Report it and reduce speed as required by the rulebook (Correct answer)
Ignore it unless smoke appears

Correct answer: Report it and reduce speed as required by the rulebook

Unusual sounds may indicate a defect, so the driver should reduce speed appropriately and report the fault.

Question 46: What FRA drug and alcohol testing regulation applies to train engineers?

49 CFR Part 219 (Correct answer)
49 CFR Part 229
49 CFR Part 240
49 CFR Part 218

Correct answer: 49 CFR Part 219

49 CFR Part 219 establishes the FRA's alcohol and drug rules, including testing requirements for safety-sensitive railroad employees.

Question 47: Under FRA regulations, what is the maximum number of consecutive hours a freight train engineer can work before a mandatory rest period?

10 hours
12 hours (Correct answer)
8 hours
16 hours

Correct answer: 12 hours

The Hours of Service Act limits freight train engineers to 12 consecutive hours on duty before requiring a rest period.

Question 48: What action is required when a train engineer observes a blue flag or blue light on the track?

Sound the horn twice and proceed slowly
Stop and wait for the signal maintainer to remove the flag
Reduce to restricted speed and proceed with caution
Stop immediately — the blue flag means workers are on or near the equipment (Correct answer)

Correct answer: Stop immediately — the blue flag means workers are on or near the equipment

A blue flag or blue light indicates that workers are on, under, or between equipment and the train must not be moved until the blue flag is removed by the authorized worker.

Question 49: What action should a train driver take when experiencing a 'penalty brake application'?

Bring the train to a complete stop before resetting the system (Correct answer)
Reduce speed by 10 mph and continue
Switch to manual override immediately
Accelerate to clear the affected zone quickly

Correct answer: Bring the train to a complete stop before resetting the system

A penalty brake application requires the train to come to a full stop before the system can be reset and operation resumed.

Question 50: What does "Cab" mean on a train?

The emergency braking mechanism
The axels that connect the wheels
The front compartment near the driver (Correct answer)
The train's principal carriage

Correct answer: The front compartment near the driver

Flashing red lights at a railway level crossing are a universal signal indicating an approaching train and an immediate hazard. It is a legal requirement and a critical safety measure to stop completely and remain stopped until the lights cease flashing, signifying that it is safe to proceed. Ignoring these signals is extremely dangerous and illegal, risking severe consequences.

Question 51: What is 'notching up' in locomotive throttle terminology?

Reducing speed before a grade
Engaging the reverser for reverse movement
Activating the horn at a grade crossing
Increasing throttle in incremental steps to add power (Correct answer)

Correct answer: Increasing throttle in incremental steps to add power

Notching up means advancing the throttle handle to higher numbered positions, increasing engine power in steps.

Question 52: What should an engineer do upon detecting a hot box (overheated journal bearing) warning from a wayside detector?

Reduce speed to 10 mph and continue to the next terminal
Stop and inspect the indicated car before continuing (Correct answer)
Notify dispatch but continue at normal speed to avoid delay
Apply service brakes and continue at medium speed

Correct answer: Stop and inspect the indicated car before continuing

A hot box alarm requires stopping the train to physically inspect the indicated car's bearing before further movement to prevent a derailment.

Question 53: What does the term 'independent brake' refer to on a locomotive?

A backup brake system for the entire train
A brake applied automatically when air pressure drops
A brake controlled by the conductor
A brake that operates only on the locomotive's own wheels (Correct answer)

Correct answer: A brake that operates only on the locomotive's own wheels

The independent brake controls only the locomotive's braking, separate from the train line air brakes.

Question 54: What does a yellow flag displayed by a track worker indicate to an approaching train?

Proceed normally — the worker is clear of the track
Stop immediately — the track is blocked
Increase speed to clear the work zone quickly
Reduce speed to the prescribed limit — workers or equipment are in or near the track (Correct answer)

Correct answer: Reduce speed to the prescribed limit — workers or equipment are in or near the track

A yellow flag is a slow order signal requiring trains to reduce speed through the flagged work zone.

Question 55: What is the correct procedure when a train is required to make an emergency stop on a curve?

Remain stopped on the curve and wait for the dispatcher
Stop the train, then if possible, move it to a tangent section to improve visibility for following trains (Correct answer)
Apply only the independent brake to prevent jackknifing
Proceed slowly to clear the curve before stopping completely

Correct answer: Stop the train, then if possible, move it to a tangent section to improve visibility for following trains

After stopping on a curve, the engineer should move the train to a straight section if safe to do so, improving sightlines for any following trains.

Question 56: If a train crew member falls ill and becomes incapacitated, what must the train driver do?

Reduce speed and complete the assignment with remaining crew
Contact dispatch for guidance and continue moving
Stop at the nearest accessible location and request emergency medical assistance (Correct answer)
Continue to the next scheduled stop to minimize delay

Correct answer: Stop at the nearest accessible location and request emergency medical assistance

A crew medical emergency requires stopping the train at a safe, accessible location and calling for emergency medical services.

Question 57: What does 'percentage of braking' measure for a train?

The percentage of cars in the train with operative brakes
The reduction in speed achieved per minute of braking
The efficiency rating of brake shoe material
The ratio of total braking force to total train weight (Correct answer)

Correct answer: The ratio of total braking force to total train weight

Percentage of braking is calculated as total braking force divided by total train weight, expressed as a percentage, and is used to determine expected stopping distances.

Question 58: Under FRA regulations, what is the minimum percentage of operative brakes required before a train may depart a terminal?

90%
75%
100%
85% (Correct answer)

Correct answer: 85%

49 CFR Part 232 requires that at least 85% of a train's cars have operative brakes before the train departs a terminal for initial terminal brake tests.

Question 59: What is the standard radio communication protocol when a train driver receives a track authority?

Repeat back the entire authority verbatim to confirm understanding before proceeding (Correct answer)
Acknowledge with 'Roger' and proceed immediately
Accept the authority and read it back only if requested
Write the authority down and confirm at the next signal

Correct answer: Repeat back the entire authority verbatim to confirm understanding before proceeding

A complete read-back of track authority is required to confirm accuracy before any movement is made.

Question 60: You observe a fire on the lineside near, but not on, the track ahead. You should:

Evacuate passengers immediately onto the line
Report it to the signaller and proceed with caution as instructed (Correct answer)
Stop and attempt to extinguish it yourself
Ignore it as it is off the track

Correct answer: Report it to the signaller and proceed with caution as instructed

Reporting allows control to assess spread and other trains, while cautious passage avoids unnecessary risk.

Question 61: What is the main reason for a speed restriction over points (switches) at a junction?

To allow safe negotiation of the diverging route (Correct answer)
To reduce noise only
To test the brakes
To save electricity

Correct answer: To allow safe negotiation of the diverging route

Diverging routes through points have lower speed limits because of the tighter geometry and ride forces.

Question 62: What is the purpose of a 'job briefing' before a train crew begins their assignment?

To complete the mandatory pre-trip inspection log
To verify that all crew members hold valid certifications
To review the route, special instructions, track conditions, and emergency procedures as a team (Correct answer)
To assign duties and collect timecards before departure

Correct answer: To review the route, special instructions, track conditions, and emergency procedures as a team

A job briefing ensures all crew members share the same understanding of the route, hazards, special orders, and responsibilities before departure.

Question 63: What is the purpose of the alerter (vigilance device) on a locomotive?

To warn pedestrians at grade crossings
To alert dispatchers of track conditions
To detect an incapacitated or inattentive driver and apply emergency brakes (Correct answer)
To signal the conductor of speed changes

Correct answer: To detect an incapacitated or inattentive driver and apply emergency brakes

The alerter monitors driver activity and initiates a penalty brake application if no action is taken within a set time interval.

Question 64: What is a 'thermal sun kink' and when is it most likely to occur?

A lateral track buckle caused by rail expansion in high heat, most common in summer (Correct answer)
A tie failure resulting from ground heave during winter thaw
A vertical track deformation from heavy axle loads in cold weather
A rail crack caused by rapid temperature changes in spring

Correct answer: A lateral track buckle caused by rail expansion in high heat, most common in summer

Sun kinks occur when continuously welded rail expands beyond its capacity in extreme heat, causing lateral buckling of the track.

Question 65: What is the primary purpose of the dynamic braking system on a locomotive?

To convert kinetic energy into electrical energy to slow the train (Correct answer)
To apply air pressure to the wheels
To engage the hand brake automatically
To reduce fuel consumption during acceleration

Correct answer: To convert kinetic energy into electrical energy to slow the train

Dynamic braking converts the locomotive's traction motors into generators, using electrical resistance to slow the train.

Question 66: When must a train driver make a mandatory radio call to the dispatcher?

At every station stop along the route
Only when departing from an initial terminal
When passing a designated reporting point, entering restricted territory, or encountering an emergency (Correct answer)
When speed exceeds 60 mph on any main track

Correct answer: When passing a designated reporting point, entering restricted territory, or encountering an emergency

Mandatory radio reporting is required at designated control points, when entering restricted or work zones, or when any emergency or unusual condition is encountered.

Question 67: While driving, you notice a person walking on the tracks ahead. What is your first response?

Accelerate to pass before they reach the train
Sound the horn and make a full service or emergency brake application (Correct answer)
Maintain speed and assume they will move
Switch off the headlights to avoid blinding them

Correct answer: Sound the horn and make a full service or emergency brake application

Warning the trespasser with the horn and braking gives the best chance of avoiding a collision.

Question 68: What is the primary braking system used on freight trains in the United States?

Pneumatic air brakes (Correct answer)
Magnetic track brakes
Regenerative electric brakes
Hydraulic disc brakes

Correct answer: Pneumatic air brakes

Pneumatic air brakes, standardized by George Westinghouse, use compressed air to actuate brake cylinders and are the standard system for US freight trains.

Question 69: During autumn, leaves on the line cause wheelslip and poor adhesion. The best driving technique is to:

Rely on the emergency brake for all stops
Brake and power as normal
Brake and accelerate gently and earlier to manage low adhesion (Correct answer)
Use sand only and ignore speed

Correct answer: Brake and accelerate gently and earlier to manage low adhesion

Smooth, early control reduces the risk of wheelslide and overruns when adhesion is poor.

Question 70: What is the purpose of a 'set-and-release' brake test before departure?

To check that the locomotive engine is running correctly
To calibrate the speedometer
To test the emergency brake cord
To verify brakes apply and release properly throughout the train (Correct answer)

Correct answer: To verify brakes apply and release properly throughout the train

A set-and-release test confirms that brakes apply uniformly and release fully on all cars before the train departs.

Question 71: What is the purpose of a 'deadman' control on older locomotives?

A device that sounds the horn at all grade crossings
An automatic coupler release for emergencies
A lever that locks the throttle at a set position
A foot pedal or button that cuts power if the driver becomes incapacitated (Correct answer)

Correct answer: A foot pedal or button that cuts power if the driver becomes incapacitated

The deadman control requires continuous pressure from the driver; releasing it causes a brake application if the driver becomes unable to operate the locomotive.

Question 72: What should a train driver do if smoke is detected in the locomotive cab?

Stop the train at the nearest safe location, evacuate, and contact the dispatcher (Correct answer)
Shut down all electrical systems and continue at reduced speed
Increase speed to ventilate the cab and continue to the next terminal
Ask the conductor to investigate while maintaining speed

Correct answer: Stop the train at the nearest safe location, evacuate, and contact the dispatcher

Smoke in the cab indicates a potential fire; the engineer must stop the train safely, evacuate, and notify the dispatcher immediately.

Question 73: A fixed signal displaying a steady red aspect requires the train driver to do what?

Sound the horn and continue
Stop and do not pass the signal (Correct answer)
Prepare to stop at the next signal
Proceed with caution at reduced speed

Correct answer: Stop and do not pass the signal

A steady red aspect is an absolute stop indication and the train must not pass it without authority.

Question 74: In the event of a derailment, what is the train driver's first priority after stopping?

Protect the train from other movements by securing the scene and notifying dispatch (Correct answer)
Continue to the next siding so emergency crews can access the scene
Inspect the derailed cars to assess damage before calling for help
Attempt to re-rail the cars using available equipment

Correct answer: Protect the train from other movements by securing the scene and notifying dispatch

After a derailment, the immediate priority is protecting the scene from additional train movements and alerting the dispatcher and emergency services.

Question 75: Why must a driver acknowledge a restrictive signal when required by the cab safety system?

To turn on lights
To log mileage
To confirm awareness and prevent automatic braking (Correct answer)
To request a route change

Correct answer: To confirm awareness and prevent automatic braking

Acknowledging confirms the driver is alert; failure triggers an automatic brake application.

Question 76: What is a 'shoving movement' and what special precaution is required?

Accelerating aggressively to clear a blocked crossing
Moving a car or train in reverse with a crew member protecting the leading end (Correct answer)
Moving a cut of cars by gravity on a classification track
Pushing a disabled locomotive using another locomotive

Correct answer: Moving a car or train in reverse with a crew member protecting the leading end

A shoving movement involves pushing cars with the locomotive at the rear, requiring a crew member at the front to watch for obstructions and communicate with the engineer.

Question 77: A passenger pulls the emergency brake handle while the train is on a high bridge. The best practice is to:

Reverse the train back off the bridge
Where possible, bring the train to a stop in a safer location before investigating (Correct answer)
Stop instantly regardless of location
Ignore the alarm until the next station

Correct answer: Where possible, bring the train to a stop in a safer location before investigating

Many systems allow the driver to control the stop so the train halts where evacuation and access are safer rather than on a bridge.

Question 78: What is a 'track warrant' in railroad operations?

A maintenance permit for track repair crews
A written or verbal authority from a dispatcher granting a train the right to use a defined section of track (Correct answer)
A document listing the car numbers and weights of the train
A speed restriction order issued by the track geometry car

Correct answer: A written or verbal authority from a dispatcher granting a train the right to use a defined section of track

A track warrant is the authority document used in non-signaled or DTC territory to grant trains the right to occupy specific track between defined limits.

Question 79: You are a train driver who is getting ready to board your vehicle. You observe that a ramp for disabled passengers is not properly fastened in its storage location for train carriages. How would you respond?

After securing the equipment in its storage location, notify the platform team of the safety concern you have just fixed by getting in touch with them. (Correct answer)
Ask the workers at the railway station whether there's a reason the wheelchair ramp was left unlocked.
Once you've finished boarding the train, let the station staff know about the unattended equipment.
Continue to board the train while doing nothing. This has likely been left in this condition since a wheelchair user is likely to arrive soon, according to the railway station officials.

Correct answer: After securing the equipment in its storage location, notify the platform team of the safety concern you have just fixed by getting in touch with them.

This response prioritizes immediate safety by securing the loose equipment, preventing potential hazards. Following this, it ensures proper communication by notifying the platform team, which is crucial for documenting the issue and ensuring future compliance with safety protocols. This demonstrates proactive problem-solving and adherence to safety standards.

Train Driver Certification Knowledge Test

A comprehensive knowledge assessment for aspiring train drivers covering the operational, safety, and technical competencies required to safely operate trains across rail safety, braking systems, communication protocols, emergency procedures, FRA regulations, track knowledge, and train controls.

Questions

35 min

Time Limit

70%

To Pass

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